Valve



ug 23 1927 K, MARSCHEIDER VALVE Filed Nov. 15, 1924 3 Sheets-Sheet ATrORNEYs K. MARSCHEIDER VALVE 3 Sheets-Sheet 2 Filed Nov. l5, 1924 IIIIIIIIIIIIIIIIIII www mm Oh. NQ W W qu INVENTOR Krim /VH/fsm/E/D/:R

,H, m ATTORNEYS Aug 23 1927' K. MARscHI-:IDER

VALVE 3 Sheets-Sheet 3 Filed Nov. l5. 1924 'lill w. u n

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Patented Aug. 23,1927.

KARrMABSCHEIDER, F BERLIN-@EGEM 5 aconduits through which a fluid GERMANY, ASSIGNOR TO A. BOBSIG GFI.

B. HL, lor BnntIN-TEGEL, GERMANY, A conronArron;i or cnam.

.VALVE Y' appncatio'meamvember 15, 1924 serial No. 750,029, and in ce1-many Maya, 1923.

This invent-ion relates' to valves and has.,

for its principal. object to provide'a new and-improvedconstruction of a, valve particularly adapted for heavy duty in large under high pressure is passed.

A further 'object is to provide a vali/econstruction which, when the valve is opened,

the valve members and the operating parts thereof are located out oi the path of fluid .passing through the valve. v

Another object is to provide a'constructionby means of which the valve closing parts will be positively located and held in proper alignment, not only in their closed position, but also in their opened position.v ','lhese and .other objects suchv as reliabilcity, ease and eiiiciency of operation, and

. durability of construction will be apparent, to those` skilled in the-art to which this ini vention appertains from the following more detailed description and by reference to the accompanying' drawing forming a part hereof. In 'the drawingswhich show an example of my invention without delining its limits,

, "Fig: 1 is a central vertical section through a valve constructedin accordance with the principles of my invention and showing the valve Vin closed position; Fig. 2 is a secf htional view taken on the same fplane as Fig.

- 1 showing the valve in partially opened position; Fig. 3 is a similar .view' showing the valve -:tally opened; Fig. 4 is a central vertical section at rightsangles to' Fi 1 .taken on the line Ll-fio Fig. 1; and F1gs.5 and 6 are sections on the line 5-e5,v and 6-6 of Fig. 1. I I

The numeral 10 indicates the valve casing whichis provided'with the usual flanged side openingsll and 12, and a top liange 13 to which the 'bonnet 14 is securedv as by the studs 15. A spider 16 preferably `formed integral with the bonnet 14 is provided at' its l zontally extending disk-like liange 22 which clam d between the bonnet 14;'and casinglO. A hollow boss 23 which' projects upper end with a housing 17 inwhich is ro-`V upwardly rom thecenter ofthe flange 22 tween a shoulder: 25, (which may'either be formed integral with said spindle or may be in the ormof anut secured to th'e spindle), and a nut 26-is a'collar27 having a pair of diametrically opposite, radially extending pins 28 which are adapted to pro,- ject .into 'the cam grooves The upper face of the nut 26 is formed to provide a seat 29 which, when the spindle 19 is fully lraised, co-opcrates ""with a similar seat 30 formed on the lowerfface of the bearing 20 to prevent leakage of the fluid from the chamber defined by the casing 10 and bonnet 14. A stuiiing boxv31 andgland 32 are also. provided to prevent leakage of fluid past the spindle 19.

The lower face of'the ange 22 is provided with an' annular recess 33 arrangedconcentrically of the'axis of the spindle 19, andan annular web 34, extending upwardly from the combined valve carrying meinlber and conduit 35, is adapted to be slidably received in said annular recess,ithe recess 33 forming a bearing for the upper portin of the valve ca member 35.

TheV member 35 is provided at the bottom \thereof with a trunnlon 36 located in axial alignment with, the spindle 19 and said trunnionjis rotatably mounted the bearing 3"? formed in the valve .casmg' 10; 195 bushing 38- preferably being interposed tween said trunnion and bearing. The lower vertical portions -b of grooves 24 are open at their lower extremithe *caml ties Vland the annular web 34 is provided with 1 00 a pair of diametrically'o posed slots 39 adapted', when the valve i; laced -in its closed position, to align with t e ope'n lower ends o the cam grooves'24.

venting relative rotation Yof these parte. In 1.10

The lower end of the valve spindle` 19 is 1mithe particular embodiment herein disclosed tlns means consists in providingth upper central portion of the member 35 with a rectangular shaped aperture in axial-alignment with the trunnion 36; the lower end of the spindle, having a similar'v cross-sem' tional coniiguration to that of theaperture.

Immediately adjacent, to and below the shoulder 25, the Vvalve spindle L9 is provided 10 -with a pair of tapered or wedge shaped faces Y41 adaptedizgito engage with the similarly tapered faces 42 `formed on the upper ends of al pair' ofvalve actuating levers 43. The levers 43 are pivotally mounted intermediate their ends upon the pins 44 and between the axially with the flanged openings -11 and 12 I V and furnish a through path for the fluid passing through thevalve.

The lower ends of the levers 43 are pro-- I vided with spherically shaped enlargements 46 which are received within correspond-A "3o. ingly shapedsockets 47 formedv in theextensions 48 projecting from the inner faces of the valve disks 49, 'The extensions 47 terminate at their innerv extremitiesv in the cylindrically shaped guides 50, which guides 35 are slidably mounted within the guideways 51 projecting laterally from the member-34 and preferably formed integral therewith..

Each of the valve disks 49 is provided on A its outer face with an' annular seat 52, press- 4o fitted within-.or otherwise suitably'secured to its' respectivevalve disk; said seats `52 being adapted to 'seat against the similar seats 53 received in the flanged openings 11 and 12.-V The seats 52 and 53, and alsothe. seats 28 andV 29 are'preferably constructed' of non-.corrosive metal. One or more dowel pms 54 areprovided orinsuringrthe proper location of' the cam member 21 with respect to the flanged open- A5l) ings 11 and 12. A vhand wheel 55 is secured 1 to the 'nut 18'or the purposeof rotating said nut and raising or lowering the'spindle 19.

Operation. l J

assuming the valve. tobe' in'the fully closed position shown in Figs. 1 and v4 in'ewhichposition it will be noted' .(see Fig. 4) that the pins 28 vare in engagement with the slots v39 tn hold thev valve member 35 `against rotationywiththe seats 52 of the valve disks 49 in. accurate alinement with the seats 53. Rotation of the hand wheel -55' in the .proper direction, will, by'- means of the vengagementof the nut -18 with the threaded portion of The manner of operation Aisv as follows the spindleV 19, ca u'se said spindle Atothe raised. As the spindle israise'd the engagement of the taperedorwedge-shaped faces 41 thereof with the co-operating -faces of the levers 43 will move the upper arms of said levers outwardly 'and 'thereby withdraw the valves-49 4Jfrom theirlclosed or seated position. 4During valves thepins 28.travel in the straight, vertical, lower portion botthe cani grooves 24.v

this movement of 2 the' The disengagement of the pins 28 from the slots? 39 of the valve carrying member 34 does not occur` until the'contact between the seats k52, 53 `is broken. Furthermore, the length of the vertical ca m portions I) is such that rotation of the valve carrying member 34 cannotoccur until the valve 49 has moved to the position'shown in Fig. 2. :After the valves 49 have been not only completely disengaged from their 'seats but moved therei from a distancesuiicient to allow themto clear the seats 53 and inner wallsof the casing 10, the continued upward movement of the spindle 19. brings the pins 28--into the curved or inclined Aportions`c of thecam grooves, thus causing the member 35 to. be

rotated aboutthe axisot the spindle; the engagement of the annular web 34 with the recess 33 and of thetrunnion 36 with the bearing 37 holding the lvalve member 35fin properposition during its rotation. The

curved cam portion c produces a rotation of the member 35 whichbrings" the ends o-its cylindrical conduit 35a-into align- A ment with the flanged openings 11, 12, the pins 28entering the-straight vertically exi tending cam portions a to hold the member 35 positively in -its' -full opened position;

The closing movement of the valve until the member 35 has been rotated again' vto the position shown in Fig.'2, as will be readi1y` understood, is a reversal. of the opening rotation, but when the pins 28 pass into the cam portions-b, the shoulder 25 of* the spindle will engage the upper endsof the levers 43 causing them to be swung on their pivots 44 in a direction opposite to the -movement produced by the tapered ffaces 41 and 42, thus i rmoving fthe valves' 49 to closing position.'

The -straight portions b of the cam 24 4are arranged to cause the valve-seats 52 to be -aligned'accurately with lthe seats 53 during the final closing movement of thevalves and the -pins 28 engage. directly with the slots 39 in the valve member 34 to positively'hold the valve member in its proper position'- whe'n the valve isclosed. It'will be-noted that the construction and arrangement of the vguidesO, 51' will insure amovement of the valve seats 52 normally to thefaces of the las seats 53and which togethervwith thesp'heri#Y cal shape of the enlarged vends 46 and the engagement thereof'with the .valves 49 at their axis will insure a perfect closing of the valve.

Y ing provided withan inlet andan outlet,

It willalso be noted that theconstruction and mounting of the valve member and valves 49 is such that the member 35 is. supported upon an axis passing through its center of gravity whereby the force required for the movement of the parts isv reduced to a minimum,- and furthermore, -when the valve is in the partially opened conditionA the pressure-of the fluid passing into and rthrough the valve: casing will be balanced on all parts of the valve member 35 in such.

a manner that the rotation of said member,

either towards or lfromits fully penedposition will not be resisted by such I claim; s 1.` A valve ofthe pressure.

type having. a' valve casa valve carrying member rotatably mounted in said casingv and -provided with a conduit. adapted when the valve is in its ullyopened position to provide adirectcommunication between said outlet and inlet, valves carried by said member, a spindle .projecting outwardly of, and connected with, said casing for 'rotatable and longitudinal sliding movement relatively thereto for actuating said member and valves; characterized by the provision of means non-rotatably secured to the-valve casing and cooperating with said spindle for positively guiding said valve carrying member Ain allof its positions of l movement..

2. A valve of the type having a valve carrying member rotatably :mounted within a casing having an inlet and an outlet, valves for closing said' inlet andfoutlet mounted on said member, said4 member -being provided with acylindrical conduit'kand a spindle projecting outwardly of, and 'connected with Vsaid casing Vfor rotatable and longitudinal slidingV movement relatively.

thereto for rotating said member to either of two positions in one of which said valves are aligned with said inlet and outlet and in the other of which said conduit furnishes communication' between said inl let;.characteriz'ed bythe provision of interlockingmeans non-rotatably Secured to said valve casingand co-operating with said spindle for positively holding said 'valve carrying member in either of. saidjpositiona 3. A valve .of the type having a valve carf rying inember'rotatably Vmounted within a casin having -an inlet and an outlet, valves forL c osing said inlet and outlet' mounted on said member, said member being provided with a cylindrical conduit and a spindleprojectingoutwardly of,;' and. connected with said casing for rotatable and longitudinal' movement," for rotating'V saidv member to either of two positions, 1n one of which, said valves are aligned with` said inlet and outlet, and in the other of which, said conduit furnishes communication between said linlet and outlet5'character1zed by the procarrying member'upon its axis.. l .V

dle carried .bined valve ',carryin et and out# .carrying member, and other .means carried"125 `cam surfaces having a curvedcentral A merging at each end with a straig t poru spindle and non-rotatably engageable directly with said valve carrying member to lock said member .in the first mentioned of d said positions'. .l

4In a valve, a casi-ng, a spindle connect- A ed with said casing for longitudinal and rotativemovement and projecting outwardly' thereof', a combined valve carrying member -vision of means carried directly by saidv and conduit rotatively mounted in said cas ing and connected with said spindle, valves carried by said member, means for raising and lowering said spindle and co-operating 'means connected'directly with said spindle and with Jsaid casing for causing the longitudinal movement of said spindle toproduce a rotation thereof and move said valve 5. In a valve, a casmg, a sp1n thereby for longitudinal and rotative move'- .35

ment and projecting v'outwardly thereof, a combined valve .carrying member? and con- .duit mounted for rotation within said casing-and in engagement with said.A spindle-.

means carried directly by said spindle, and

co-operating .means 1n engagement withlsaid 'first named means and connected with-slafi'cl casing for causing rotation of said spin dle and member.

6. In a valve, a casing, a- Ymember mount'- 95 ved within said casing and lixedly secured thereto, said member being provided with cam surfaces, a spindle mounted' uponsaid Acasing forlongitudinal 'and rotative movement and projecting outwardly thereof, lo

means connected with said spindle for ca using longitudinal movement thereof, a com..

member and conduit' carrledby said spin le and mounted-for rotation withinsaid casing, valves carried by I .casing for -longiti'idinal.and rotativemovel ment; a -combined valve carrying member andco'nduit in engagement with sald spindle, and mounted forJ rotation within said casing, valves lcarried by said/last-'in'entioned member, means fixcdly secured to said spindle -1 `and engaged with said cam surfaces for/causing the longitudinal movement ofsaid;

spindle to produce Arotation of said valve by said `spindle for actuatingsaidv'val'ves.`

8. In a valve, a casing, a memberjmount ed within said casing and fixedly secured thereto, said member'being provided with rtion -carryingmember and conduit in engagement with said, spindle, and mounted for rotation within said casing, valves vcarried "by :said combined member at right angles to said conduit and means lcarried directly by said spindle and co-operating'with the curved portion' of said cam surfaces to produce a limited rotation of said spindle and valve carrying member and cooperating withthestraight portions of said cam surfaces vto lock said spindle and-valve carrying member againstrotation at either end of their rotational movement.

9. In'a valve, a casing, a spindle carried thereby for rotative and longitudinal movement,'a combined 'valve carrying member and 'conduit nonrrotatably connected with -said spindle, valves and valve actuating levers-carried by said member, -andmeans fxedly secured tol said spindle toform there-f with a rigid substantially integral structure adapted to engage directly with said levers and cause actuation of the valves.

` 10. In aJ valve, a casin a spindle carried -therebyfor'rotative and-don 'tudinal movement, a combined valve carrying member and conduit `in engagement with said spindle, valves and valve actuating levers carried by said member, said vspindle being providedA with wedge shaped faces for actuating-said to close said valves.

levers to open said-valves and a shoulder upon said spindle for actuating said levers 11. In a valve, a casmg'ineluding a bonl inet secured thereto, a spindle mounted upon said bonnet forrotative and 'longitudinal .carrying member and conduit in engagement.

member, and a spindle connected to said cas.-

tween said bonnet and casing, said spider having a hollow boss projecting from said angeand encirclir'ne;` said spindle, said boss being provided with cam surfaces, means carried by said spindle'in engagement-with said cam surfaces for causingthe longituiinal movement of said spindle'to produce a limited rotation thereof,` a combined val`ve with said spindle and mounted for rotation within 'said casing, valves andavalve actuating levers carried by said member,.and meansY iXedly secured to said spindle or actuating said levers. i

12. In a valve, -a casing provided with an inlet and an outlet, a valve carrying member rotatably mounted within .said casing, said member being provided with "a cylindrical conduit, valves movably mounted on said ing for llongitudinalf and rotative movement, said spindle being further non-rotatably-and slidably associated with said member, and adapted .to rotate'said member to either of two positions, in on'e of which, saidq valves are aligned'with saidinlet and outlet,and in the other` of which, said conduit furnishes communicatin between said inlet and outlet; said spindle and member being-provided yvith interlocking means constructed and arranged to be brought into engagement when said-member is moved to thefirst ofA ,said mentioned positions to` hold said member positively against further rotation.

In testimony whereof I-have hereunto set my hand. f'

l KARL MARSCHEDER. 

